1. Water and drainage Osmanthus fragrans is mainly watered within one month after new planting and in the summer of the planting year. The newly planted osmanthus must be watered, and it can be watered in time according to the weather and site conditions. Conditionally spray water on the crown of the plant to maintain a certain air humidity and reduce the evaporation of water from the seedlings. In addition, in order to promote the early flowering of osmanthus fragrans, in mid-September, when the flower buds begin to germinate, appropriate amount of water should be used to keep the soil moist. Osmanthus fragrans seedlings do not need a lot of watering during normal maintenance, but can be properly watered in particularly dry summer and autumn. Osmanthus fragrans is not tolerant to waterlogging, and poor drainage will cause a lot of fallen leaves, root rot and even death. Drainage or transplanting waterlogged plants in time and planting with a certain amount of sand can promote the growth of new roots.

2. Reasonable fertilization should be based on the principle of thin fertilizer and frequent application, with quick-acting nitrogen fertilizer as the main fertilizer, and medium and large seedlings should be fertilized three or four times a year. In early spring, before the buds begin to swell, the roots begin to move and absorb fertilizer. Therefore, in early spring, organic fertilizer should be applied to the tree tray to promote the growth of spring shoots. Spring shoots are branches that bloom in autumn that year. Spring seedlings are growing vigorously and will bloom more in the future. After Osmanthus fragrans blooms in autumn, in order to restore tree vigor and supplement nutrition, inorganic fertilizer or garbage miscellaneous fertilizer should be applied in early winter. In the meantime, fertilization can be applied once or twice according to the growth of osmanthus fragrans. The newly transplanted osmanthus fragrans has weak absorption capacity because of its damaged root system, so it is not appropriate to topdressing too early. The base fertilizer of the transplanting pit should be mixed with soil and covered with soil, and the root system should not be in direct contact with the fertilizer, so as not to damage the root system and affect the survival rate. Fertilizer must be applied where the roots can absorb it. Seedling roots are concentrated, and transplanting is easy to survive. Therefore, fertilization in nursery should not be too far away from seedling crown, otherwise the root system will expand outward. But it is not suitable to be applied under the trunk, which is not conducive to the absorption of fertilizer.

3. Pruning osmanthus fragrans is an important measure to cultivate single-dried osmanthus fragrans. Timely and reasonable pruning can make it ventilated and transparent, strengthen photosynthesis and reduce pests and diseases, so that osmanthus fragrans grows rapidly, its trunk is straight and its tree shape is beautiful.

Mainly includes:

(1) When osmanthus fragrans with peeled buds germinates, the buds on the trunk and base can also germinate. The useless buds at the lower part of the trunk should be peeled off in time to concentrate water and nutrition, promote the development of the upper branches and form an ideal tree shape.

(2) Planting osmanthus fragrans with single stem by thinning branches. From the beginning of seedling raising, we should consciously cultivate the trunk straight, keep a certain height under the branches, and cut off useless branches. Generally, the height under the branches of osmanthus fragrans is about 1.5 meters.

(3) Cutting short, that is, cutting off the top branches that are growing too vigorously, so that the height of osmanthus fragrans is kept at about 3.5 meters, and the crown width is kept at 2.5 to 3 meters. When transplanting Osmanthus fragrans, in order to maintain a complete tree shape, it is not advisable to cut it forcefully, but only cut off dead branches, disease and insect branches, sparse overlapping branches, cross branches and thin branches, and control long branches.